{
  "$schema": "https://foodadditiveindex.com/api/v1/schema.json",
  "id": "https://foodadditiveindex.com/additives/ammonium-hydroxide",
  "slug": "ammonium-hydroxide",
  "name": "Ammonium hydroxide",
  "identifiers": {
    "e_number": "E527",
    "ins_number": "527",
    "cas_number": "1336-21-6",
    "inchikey": "VHUUQVKOLVNVRT-UHFFFAOYSA-N",
    "pubchem_cid": 14923
  },
  "functional_class": "Acidity regulator",
  "summary": "Ammonium hydroxide is an alkaline processing aid used to adjust pH during manufacture, notably in caramel colour production and in some meat processing.",
  "derivation_summary": "A solution of ammonia gas in water. It is a processing aid rather than an ingredient and is normally neutralised or driven off.",
  "regulatory_status": [
    {
      "jurisdiction": "US",
      "jurisdiction_name": "United States",
      "authority": "Food and Drug Administration",
      "status": "permitted",
      "status_label": "Permitted",
      "provision_count": 1,
      "provisions": [
        {
          "status": "permitted",
          "food_category": null,
          "max_level": null,
          "max_level_unit": null,
          "conditions": null,
          "effective_from": null,
          "citation": {
            "ref": "21 CFR 184.1139",
            "url": "https://www.ecfr.gov/current/title-21/section-184.1139"
          },
          "source": "ecfr",
          "retrieved_at": "2026-09-07T18:25:51.549Z"
        }
      ]
    },
    {
      "jurisdiction": "CODEX",
      "jurisdiction_name": "Codex Alimentarius",
      "authority": "Codex Alimentarius Commission / JECFA",
      "status": "permitted_with_conditions",
      "status_label": "Permitted, with conditions",
      "provision_count": 2,
      "provisions": [
        {
          "status": "permitted",
          "food_category": null,
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": null,
          "effective_from": "1999",
          "citation": {
            "ref": "CXS 192-1995 Table Three, INS 527",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        },
        {
          "status": "permitted_with_conditions",
          "food_category": {
            "system": "codex",
            "code": "01.2.1.2",
            "name": "Fermented milks (plain), heat-treated after fermentation"
          },
          "max_level": null,
          "max_level_unit": "GMP",
          "conditions": null,
          "effective_from": "2013",
          "citation": {
            "ref": "CXS 192-1995 Table One, INS 527, food category 01.2.1.2",
            "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/"
          },
          "source": "gsfa",
          "retrieved_at": "2026-09-07T07:54:15.059Z"
        }
      ]
    }
  ],
  "names": [
    {
      "name": "1336-21-6",
      "type": "cas",
      "source": "ecfr"
    },
    {
      "name": "agua de amoniaco",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "AMINE HYDRATE",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ammonia (ammonium hydroxide) 28% by weight or more NH3",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ammonia aqueous",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "ammonia hydrate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ammonia solution 25%",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ammonia water",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ammonia water (JP18)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ammonia water 29%",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ammonia Water; Ammonia, Aqua; Ammonia, Monohydrate; Aqua AmmoniaSX 1; SX 1 (Ammonia Water);",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ammonia, aqua",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ammonia, monohydrate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "ammoniaque",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ammonium aqueous (28% or less NH3)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "ammonium hydorxide",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "ammonium hydoxide",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ammonium hydrate",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "ammonium hydroxid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ammonium hydroxide",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "Ammonium hydroxide ((NH4)(OH))",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ammonium hydroxide (28% or less ammonia)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ammonium hydroxide, 1N aqueous solution (+/-0.1N)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ammonium hydroxide, 25% NH3",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "ammonium hyroxide",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Ammoniumhydroxid",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "ammoniumhydroxide",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "amonium hydroxide",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "amrnonium hydroxide",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Aqua ammonia",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "Aquammonia",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Caswell No. 044",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "E 527",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "EPA Pesticide Chemical Code 005301",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "hidroxido de amonio",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Household ammonia",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "HSDB 5125",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Hydroxide, Ammonium",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "hydroxyde d'ammonium",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "NH3 water",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "Strong ammonia solution",
      "type": "common",
      "source": "openfoodtox"
    },
    {
      "name": "SX 1 (ammonia water)",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "USP Solution Ammonia (Ammonium Hydroxide) TS Conforms to USP",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "VHUUQVKOLVNVRT-UHFFFAOYSA-N",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "water ammonia",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "water NH3",
      "type": "common",
      "source": "pubchem"
    },
    {
      "name": "E527",
      "type": "e_number",
      "source": "openfoodtox"
    },
    {
      "name": "527",
      "type": "ins",
      "source": "gsfa"
    },
    {
      "name": "ammonium hydroxide",
      "type": "iupac",
      "source": "openfoodtox"
    },
    {
      "name": "Ammonium hydroxide",
      "type": "label",
      "source": "ecfr"
    }
  ],
  "hazard_reference_values": [],
  "sources": [
    {
      "key": "ecfr",
      "name": "Electronic Code of Federal Regulations, Title 21",
      "publisher": "U.S. Government Publishing Office / National Archives",
      "licence": "Public domain",
      "url": "https://www.ecfr.gov/api/versioner/v1/full/2026-08-31/title-21.xml",
      "retrieved_at": "2026-09-07T18:25:51.549Z"
    },
    {
      "key": "gsfa",
      "name": "Codex General Standard for Food Additives (CXS 192-1995)",
      "publisher": "Codex Alimentarius Commission (FAO/WHO)",
      "licence": "FAO terms — non-commercial use with attribution",
      "url": "https://www.fao.org/fao-who-codexalimentarius/codex-texts/dbs/gsfa/en/",
      "retrieved_at": "2026-09-07T07:54:15.059Z"
    }
  ],
  "citation_policy": "Cite as: Food Additive Index, \"Ammonium hydroxide\", https://foodadditiveindex.com/additives/ammonium-hydroxide. This site reports regulatory status and does not rate additives.",
  "generated_at": "2026-09-08T00:09:38.409Z"
}